JPS5765905A - Alternating current amplifier - Google Patents

Alternating current amplifier

Info

Publication number
JPS5765905A
JPS5765905A JP55142795A JP14279580A JPS5765905A JP S5765905 A JPS5765905 A JP S5765905A JP 55142795 A JP55142795 A JP 55142795A JP 14279580 A JP14279580 A JP 14279580A JP S5765905 A JPS5765905 A JP S5765905A
Authority
JP
Japan
Prior art keywords
resistance
voltage
reference potential
amplifier amp
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55142795A
Other languages
Japanese (ja)
Other versions
JPH0113646B2 (en
Inventor
Tadashi Miyano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP55142795A priority Critical patent/JPS5765905A/en
Publication of JPS5765905A publication Critical patent/JPS5765905A/en
Publication of JPH0113646B2 publication Critical patent/JPH0113646B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Abstract

PURPOSE:To prevent the variance of the voltage in the power source side from appearing in an AC output, by providing plural input terminals and inputtig a signal, which is obtained by inverting and amplifying the variation of the voltage between the reference-side electrode of an input signal and the reference potential (middle point), to a pertinent input terminals. CONSTITUTION:An AC inversion amplifier AMP is provided where a negative- polarity voltage VEE of a DC powr source is inputted and a middle-point voltage VCOM is a reference potential, and an output V2 of this amplifier AMP is set as the reference potenail of a resistance R2. For the amplifier AMP, a series circuit consisting of a capacitor C4 for DC cut and an operational resistance Rs is provided in the input side of an operational amplifier OA where the middle-point voltage VCOM is the reference potential, and a feedback resistance Rf is provided. The impedance of the capacitor C4 is sufficiently smaller than the resistance Rs in a center frequency two of the filter.
JP55142795A 1980-10-13 1980-10-13 Alternating current amplifier Granted JPS5765905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55142795A JPS5765905A (en) 1980-10-13 1980-10-13 Alternating current amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55142795A JPS5765905A (en) 1980-10-13 1980-10-13 Alternating current amplifier

Publications (2)

Publication Number Publication Date
JPS5765905A true JPS5765905A (en) 1982-04-21
JPH0113646B2 JPH0113646B2 (en) 1989-03-07

Family

ID=15323787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55142795A Granted JPS5765905A (en) 1980-10-13 1980-10-13 Alternating current amplifier

Country Status (1)

Country Link
JP (1) JPS5765905A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8989561B1 (en) 2008-05-29 2015-03-24 Rovi Guides, Inc. Systems and methods for alerting users of the postponed recording of programs

Also Published As

Publication number Publication date
JPH0113646B2 (en) 1989-03-07

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